Port-A-Cool JetStream swamp coolers need to be operated certain locations for optimal results. The Port-A-Cool CASTERS-JS-4 non-locking caster makes it easy to maneuver the swamp cooler into an area with an open window or door so that hot outdoor air can be drawn into the unit.

One Non Locking CasterThe Port-A-Cool CASTERS-JS-4 non locking caster is ideal when you need to add or replace one of the casters on your Port-A-Cool swamp cooler.